Redoing a site and got the old pits cleaned out to find the drain is is at one end of the pit and lower then I like. The pits I have built I have always put the drain in the middle because it seems the dirt always builds up on both ends of the pit first. Would you leave it like it is, put a couple elbows to get it higher to allow more dirt so as not to have to clean it as often, or cut the concrete and run it to the middle of the pit? Thanks!